I am very happy with using 100ml Aromatherapy Essential Oil Diffuser Portable Ultrasonic Cool Mist Aroma Humidifier *Bonus PDF* with 7 Color LED Lights Changing and Waterless Auto Shut off Function Home Office Bedroom Room Baby. It is so easy to use. I love went it runs out of water it turns it's self off. I been looking for my favorite Aromatherapy Essential Oil Diffuser Portable Ultrasonic Cool Mist Aroma Humidifier. I want one for each room of my home. This does not make a mess , when using your favorite Aromatherapy Essential Oil. It is in my living room on my new cabinet. My first one leaks a lot of mist that wets the spot it sets in. I do not have any cons on this Aromatherapy Essential Oil Diffuser. It works well. It makes a nice night light. I love it. I would highly recommend. This would also make a great gift. Disclaimer: I have received this Aromatherapy Essential Oil Diffuser at a discounted price in exchange for my honest unbiased review. My opinions are my own and they are given after I personally have used the product.